Predictors of clopidogrel use at admission after stepwise backward elimination in a multivariate binary logistic regression analysis model.

Variables that were entered into the model prior to elimination were: Main diagnosis, age, gender, weight, presence of diabetes, presence of hypertension, presence of hyperlipidaemia, familiar history of coronary heart disease (CHD), current or prior smoking, history of COPD, site of antiplatelet loading therapy, presence of atrial fibrillation, active bleeding at admission, history of stroke or TIA, history of intracranial haemorrhage and planned operation.